When entering several times QView mode with syn,
I get TC crash. Win7 (x32,x64) only, XP works ok.

First time entering QView i may see syn, but next time QView crashes. I ve found a line in code, ReadOnly:=true;- if I comment it (or make ReadOnly:=false) then QView works. But I *need readonly in QView.
Crash not in ReadOnly assignment.

You mean the dialog from Windows? While it is shown, please go to the TEMP directory with this command (from a second copy of Totalcmd):
cd %temp%

There should be a *.dmp file (maybe in a new subdir) which would be sent to Microsoft. Please send me this file (zipped) to support at ghisler dot com, so I can analyze it. Thanks!_________________Author of Total Commander
http://www.ghisler.com

yes, Windows dialog.
Cannot send *.dmp file, as i cannot find it in temp- there's some msdtadmin folder which i cannot enter at all (TC shows "Cannot execute tcmadmin.exe" and cannot enter- this tcmadmin.exe does exist in TC folder) and no dmp files.

When you get the Windows error dialog, you can get details about the report. In the technical details, it should show which files will be sent to Microsoft. This should show you the location of the dmp file.

Btw, do you have write rights to the directory where syn2 is installed? There are several plugins which crash when they don't have write rights to their own folder._________________Author of Total Commander
http://www.ghisler.com

Hmm, these "add data" lines point to attachments. I guess that you can find out the location by running "process monitor" and checking what files it accesses._________________Author of Total Commander
http://www.ghisler.com